Lenovo ThinkSystem SR675 V3 · 7D9QCTO1WW

CTO base part number

7D9QCTO1WW

Ordering-code scope

Machine Type/Model General purpose

Documented ordering description

ThinkSystem SR675 V3 - 1yr Warranty for AI

Platform in this guide

ThinkSystem SR675 V3

Form factor

3U rack

Processor

Up to two AMD EPYC processors, either 5th Gen 9005 ("Turin") or 4th Gen 9004 ("Genoa"). Supported processors up to 160 cores, core speeds of up to 4.1 GHz, and TDP ratings of up to 400W. Supports PCIe 5.0 for high performance I/O.

Memory

24 DIMM slots with two processors (12 DIMM slots per processor) per node. Each processor has 12 memory channels, with 1 DIMM per channel (DPC). Lenovo TruDDR5 RDIMMs, 3DS RDIMMs, and Optimized DIMMs are supported, up to 6400 MHz. Memory rated at 6400 MHz is only supported with 5th Gen processors.

Memory maximum

Up to 3TB per node with 24x 128GB 3DS RDIMMs

Disk drive bays

Either 2.5-inch or EDSFF drives, depending on the configuration: Configurations with SXM5 GPUs (SXM5 model): 4x 2.5-inch hot-swap NVMe drive bays 4x EDSFF E3.S 1T hot-swap NVMe drive bays Configurations with 4x double-wide or single-wide GPUs (4-DW GPU model): 8x 2.5-inch hot-swap AnyBay drive bays supporting SAS, SATA or NVMe SSDs Configurations with 8x double-wide or single-wide GPUs (8-DW GPU model): 6x EDSFF E1.S 5.9 mm hot-swap NVMe drive bays 4x EDSFF E3.S 1T hot-swap NVMe drive bays The server also supports an internal M.2 adapter supporting up to two M.2 drives. (optional RAID). See the Internal storage section for details.

Network interfaces

OCP 3.0 SFF slot with flexible PCIe 4.0 x8 or x16 host interface, available depending on the server configurations: SXM5 model: Supported, dependent on the storage configuration 4-DW GPU model: Supported, dependent on the configuration of PCIe slots 8-DW GPU model: Supported, dependent on the configuration of PCIe slots The OCP slot supports a variety of 2-port and 4-port adapters with 1GbE, 10GbE and 25GbE network connectivity. One port can optionally be shared with the XClarity Controller 2 (XCC2) management processor for Wake-on-LAN and NC-SI support.

PCI Expansion slots

Maximum 14 expansion slots + 1 OCP (limited by available PCIe lanes), depending on the GPU and drive bay configuration selected. 8x DW GPU slots (x16 Front) 2x I/O slots (x16 Front) 2x I/O slot riser1 (rear x16) 2x I/O slot riser2 (rear x16) 1x OCP (rear x16) – Gen 4 max

GPU support

Supports up to 8x double-wide or single-wide PCIe GPUs or 4x SXM5 GPUs, depending on the configuration: SXM5 model: 4x SXM5 GPUs (@700W/GPU) with Lenovo Neptune liquid-to-air cooling and 4x 2.5-inch drive bays or 4x EDSFF E3.S 1T NVMe SSDs 4-DW GPU model: 4x double-wide GPUs (@600W/GPU) with 8x 2.5-inch drive bays 4x single-wide GPUs with 8x 2.5-inch drive bays 8-DW GPU model: 8x double-wide GPUs (@600W/GPU) with 6x EDSFF E1.S NVMe SSDs or 4x EDSFF E3.S 1T NVMe SSDs 8x single-wide GPUs with 6x EDSFF E1.S NVMe SSDs or 4x EDSFF E3.S 1T NVMe SSDs

Cooling

5x dual-rotor simple-swap 80 mm fans, configuration dependent. Fans are N+1 rotor redundant, tolerating a single-rotor failure. One fan integrated in each power supply.

Power supply

Up to four 1U hot-swap CFFv4 AC power supplies with 80 PLUS Titanium or 80 PLUS Platinum certification. 1800 W, 2400 W or 2600 W AC options, supporting 220 V AC. In China only, power supplies also support 240 V DC. Minimum two power supply configuration. Supports N+N, N+0, N+1 policies with OVS always ON. SXM5 model: supports 1800W, 2400W and 2600W 4-DW GPU model: supports 1800W, 2400W and 2600W 8-DW GPU model: supports 1800W, 2400W and 2600W Note: Redundancy is not a user selectable option but it is preset based on number of power supplies and configuration.

Systems management

Operator panel with status LEDs. On SXM5 and 4-DW GPU models, External Diagnostics Handset with LCD display (not available in 8-DW GPU models). XClarity Controller 2 (XCC2) embedded management, XClarity Administrator centralized infrastructure delivery, XClarity Integrator plugins, and XClarity Energy Manager centralized server power management. XCC Platinum which enables remote control functions and other features.

Dimensions

Width: 448 mm (17.6 in.), height: 131 mm (5.2 in.), depth: 892 mm (35.1 in.). See Physical and electrical specifications for details.

Weight

Approximate weight, dependent on the configuration selected: SXM5 model: 39.5 kg (87 lb) 4-DW GPU model: 36.7 kg (81 lb) 8-DW GPU model: 39 kg (86 lb)

Selection qualification

CTO is a configuration base code, not a fixed installed BOM. Platform limits do not mean simultaneously installed CPU, RAM, drives or GPUs. Verify machine type, CPU count, memory, backplane, cooling and power. AI/HPC denotes an ordering scope, not included accelerators. Confirm local warranty and supply separately.

Specification source: Lenovo ↗
Checked against documentation: 19.10.2026